All that snow still covering the mountains contains a lot of water, and when it melts too fast, like it did early this week, runoff becomes excessive. The flow turns small streams and babbling brooks into raging torrents that can easily sweep unwary hikers to their doom.
An even greater threat to lives are those usually dry mountainside ravines.
These channels are inviting hiking territory, since they have fewer obstructions. But remember, these are dry washes that can suddenly fill with fast-moving water during rapid thaws.
Story by AccuWeather.com Expert Senior Meteorologist John Kocet.